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Volume

Volume number
16
Publication year
2014

Optimization of Solar Energy for Salt Extraction from Lake Katwe, Uganda

by

Hillary Kasedde et al. View all

Sustainable Energy

The solar evaporative crystallization process at Lake Katwe was studied using brine evaporation rates, thermal, convection, and radiation energy losses as well as reported meteorological data around the salt lake basin. A simulation model of a salt pan was developed on a lumped basis to study its...

solar evaporation Crystallization +3 more

Combustion of biofuels-diesel blends in an isothermal oven

by

Mario Toledo T. et al. View all

Sustainable Energy

In this work, combustion process of diesel and biofuel blends is studied experimentally in an isothermal oven. Blends with respectively 20%, 40% and 60% of Ethanol (E20, E40, E60), 20%, 40% and 60% of Methanol (M20, M40, M60), and 20%, 40%, 60%, 80% and 100% of Biodiesel (B20, B40, B60, B80, B100)...

Biofuels Diesel +3 more

Synthesis, characterisation and catalytic performance of Cu- and Co-modified Fe-Al co-precipitated catalysts for the steam reforming of ethanol

by

Guilherme de Souza et al. View all

Sustainable Energy

This paper reports the synthesis and the investigation of the properties and performance of Fe-Al catalysts modified with Cu or Co for the steam reforming of ethanol. The materials were prepared by the precipitation method with different Fe/Al ratios. The samples were characterised by the S BET, TG...

Iron catalyst precipitation method +5 more

Spatial and seasonal patterns of precipitation in Greece: the terrain segmentation approach

by

Aschonitis V. et al. View all

Hydrology and water resources

The aim of the study is to investigate the spatial and seasonal variation of precipitation in Greece using multi-temporal data analysis techniques. Mean monthly precipitation grids of 1 km 2 resolution of the period 1950-2000 were used in the analysis. Cross correlation quantified spatio-temporal...

imagery correlations principal components +3 more

Effect of wastewater and grey water reuse on the germination and early growth of barley and onions

by

Bashaar Y. Ammary et al. View all

Water and Wastewater Treatment

This paper evaluates the effect of wastewater reuse on the germination and growth at early stages of barley and onions. Treated wastewater, partially treated industrial wastewater, grey water, and car wash water, in addition to tap water as control were used to test their effect on germination...

Barley gray water +4 more

Spatio-temporal change assessment using normalize difference vegetative index and spectral analysis techniques for vegetation cover on Wadi Auranah

by

Gohar A. Mahar et al. View all

Ecosystems and Natural Resources Management

Wadi Auranah is one of the potential wadis in respect of land use, located on the western shield (Hijaz escarpment) of Saudi Arabia. A spatio-temporal change assessment of this wadi (valley) was conducted with the help of landsat data. The results of the spectral analysis and NDVI for vegetation...

NDVI Spectral enhancement +3 more

Assessment model application of water supply system management in crisis situations

by

Pietrucha-Urbanik K. et al. View all

Water Resources Management

Due to the fact that water systems belong to critical infrastructure, diverse methods of its management assessment during crisis situations are applied. In these methods both technical aspects and human factors, that have an impact on safety of water supply to the recipient, are considered. Also...

water supply system crisis situation +2 more

Modeling the 3-d flow around a cylinder using the SAS hybrid model

by

Papadonikolaki G. et al. View all

General

Three-dimensional calculations were performed to simulate the flow around a cylindrical vegetation element using the Scale Adaptive Simulation (SAS) model; commonly, this is the first step of the modeling of the flow through multiple vegetation elements. SAS solves the Reynolds Averaged Navier...

Cylinder Vortex shedding +4 more

Surface and subsurface water quality assessment in semi-arid region: a case study from Quetta and Sorange Intermontane Valleys, Pakistan

by

Amir Waseem et al. View all

Hydrology and water resources

Present investigation is an exertion to explore safe means of water for the community in the water scare region. In order to accomplish such goal origin of springs as well as chemical analyses of groundwater samples from different locations were carried out. Four zones are discovered on the basis of...

hydrochemistry semi-arid region +3 more

Influence of exposure to pesticides on liver enzymes and cholinesterase levels in male agriculture workers

by

Abou Shanab R.A.I. et al. View all

Hazardous Substances and Risk Analysis

human health and the environment. The study aimed to explore the effects of exposure to pesticides on the liver functions and acetycholinesterase levels in serum (AChES) and red blood cells (AChER) of 100 male participating in agricultural work ranging in age between 20 and 60 year with mean age 37...

Cholinesterase Pesticides exposure +3 more

Determination of rainwater harvesting tank size

by

Vassilios A. Tsihrintzis et al. View all

Water Resources Management

Onsite rainwater harvesting is an inexpensive water source for indoor use; it is also a sustainable water management practice, since it may contribute to the reduction of runoff volume and peaks, and to the control of non-point source pollution. The aim of this paper is to provide a method for...

rainwater harvesting tank sizing +2 more

High frequency ultrasound waves for degradation of amoxicillin in the presence of hydrogen peroxides for industrial pharmaceutical wastewater treatment

by

Mohammed Matouq et al. View all

Water Quality

Amoxicillin degradation with and without high frequency ultrasound waves of 2.4 MHz has been investigated. The concentration of amoxicillin was selected to be similar to that of outlet wastewater effluent concentration in pharmaceutical industry namely 50 and 100 ppm. The application of ultrasound...

ultrasound high frequency ultrasound waves +7 more

Adopting a participatory approach to community forests management in rural Nigeria

by

Arowolo Aisha Olushola et al. View all

Ecosystems and Natural Resources Management

The study examined the willingness of rural households to pay for sustainable management of community forests in Southwest Nigeria. The value elicitation format used was the dichotomous choice contingent valuation technique. The multistage random sampling technique was used in selecting 180 rural...

Households Willingness +5 more

Economic-environmental comparison between flat-plate and evacuated tube solar collectors

by

Edson Luiz Foletto et al. View all

E2KW 2013

This work employs the environmental methodology of Life Cycle Assessment (LCA) in compliance with ISO 14040 and uses software SimaPro® 7.3.2 to compare the environmental impact in process production of flat plate and evacuated tube solar collectors. In addition, an economic analysis was performed...

economic-environmental analysis evacuated tube +3 more

Full cost accounting on existing and future municipal solid waste management facilities in Greece

by

Dimitrios Komilis et al. View all

Solid Waste Management

In this work, we performed a detailed full cost accounting for 7 types of existing and planned municipal solid waste management facilities (sanitary landfills, anaerobic digestion, biodrying, incineration, aerobic mechanical and biological, material recovery and waste transfer stations) in Greece...

depreciation full cost accounting +3 more

Thermogravimetric analysis as significant tool for suitability assessment of solid waste destined for processing by thermal desorption

by

Jiří Hendrych et al. View all

Solid Waste Management

Thermogravimetric analysis combined with a mass spectroscopy detector was used to study the thermal stability of solid materials earmarked for processing by thermal desorption (for example during the amelioration of environmental damage). The objective of the study was to verify the applicability of...

thermogravimetry decontamination process +1 more

Processes affecting recent and future evolution of the Xylokastro beach zone (Gulf of Corinth, Greece)

by

Serafim Poulos et al. View all

General

The aim of the present study is to investigate the morphodynamic regime of the coastal area of Xylokastro (north coast of Peloponnese), in order to identify and evaluate the processes controlling its formation and evolution. Within this concept, a number of factors have been considered and evaluated...

wave regime coastline changes +2 more

Causes and remedies for filamentous foaming in activated sludge treatment plant

by

Krishna Khairnar et al. View all

Water and Wastewater Treatment

This paper reviews the problem of foaming associated with the activated sludge process and its control using various physical, chemical and biological methods. Activated sludge process is widely used for treatment of every type of wastewater like industrial, domestic and municipal wastewater. This...

Filamentous Bulking Selectors +3 more

Future primary teachers’ knowledge and understanding of environmental quality issues – a questionnaire survey

by

Papanastasiou D.K. et al. View all

General

This paper aims to investigate students’ awareness regarding the factors that affect the environmental quality in university classrooms. For this purpose a questionnaire survey was conducted, in which 314 undergraduate students of the School of Primary Education, Aristotle University of Thessaloniki...

Indoor thermal comfort Indoor air quality +2 more

Heat waves characteristics and their relation to air quality in Athens

by

Papanastasiou D.K. et al. View all

Air Quality

This paper studies the characteristics of the heat waves that were observed in Athens, Greece since 1951. A heat wave is detected when two temperature criteria are fulfilled at the city centre: the daily maximum temperature value is at least 37 oC and the daily average temperature value is at least...

Heat wave Temperature +2 more

Prognosis of maximum daily surface ozone concentration within the greater Athens urban area, Greece

by

Paliatsos A.G. et al. View all

Air Quality

In recent decades, there has been an increasing interest in the prognosis of maximum surface ozone concentrations due to the adverse effects on human health, animal population, agricultural productivity and forestry. The present study deals with the development and application of Artificial Neural...

Ambient air pollution surface ozone prediction +1 more

Effects of urban development in microclimatic conditions in Thessaloniki

by

Kosmopoulos Panos et al. View all

Air Quality

The urban planning, the buildings and covering materials of all surfaces, the distance between adjacent constructions, the height and the orientation of the buildings are some of the factors which affect the sustainable conditions in the city. This paper presents a project that aims at investigating...

urban microclimate urban heat islands +1 more

Indoor mass concentrations of particulate matter in hospital environment

by

Gaidajis G. et al. View all

General

The assessment of the air quality of indoor environment where people usually spend extended time periods, especially for sensitive population groups such as patients during their hospitalization, is of major importance. Ensuring a safe level of air quality in these indoor environment serves as an...

coarse and fine particulate matter intensive care units +1 more

Selection of forest species for use in urban environment in relation to their potential capture to heavy metals

by

Tsitsoni T. et al. View all

General

The aim of this research is to study the behavior of different forest species in accordance with their ability to retain heavy metals on their leaves in order to select the most suitable species for urban and peri-urban use, which will contribute to the reduction of the continuously growing...

urban green silvicultural characteristics +3 more

Risk assessment of oil spill accidents

by

Christodoulou George et al. View all

Hazardous Substances and Risk Analysis

The objective of this study is to present an integrated stochastic approach for quantifying the risk of oil spill in marine waters and adjacent coasts. This was achieved via the effective cooperation between the National Technical University of Athens (NTUA) and the Bogazici University (BU) within...

Oil slick sea accidents +4 more

Integrated management of karstic waters – A case study of the Zlatibor mountain massif, Serbia

by

Vranjes A. et al. View all

Water Resources Management

The Zlatibor mountain massif has significantly changed for the past 20 years due to the development of tourism, which has resulted in an increase in water consumption and environmental threats. This area abounds in considerable surface and groundwater resources, which are not utilised adequately...

Integrated water management karst +2 more

Solvothermal synthesis of truncated octahedron Cu2O and their catalytic applications on the degradation of methylene blue

by

Chengwen Song et al. View all

Advanced Oxidation Processes

Cu 2O photocatalyst is synthesized by solvothermal method. Morphology and structure of Cu 2O photocatalyst are analyzed by SEM, XRD and N 2 sorption technique. The catalytic performances and reaction kinetics of Cu 2O photocatalyst for the degradation of methylene blue (MB) are investigated. The...

Cu2O Catalysis +2 more

Strategies for hydrogen peroxide dosing based on dissolved oxygen concentration for solar photo-Fenton treatment of complex wastewater

by

Sixto Malato et al. View all

Hydrogen peroxide consumption is known to be one of the key parameters of the photo-Fenton process responsible for its high operating costs. The purpose of this study was to find out whether adding dissolved oxygen to the reaction medium in a continuous stream of pure oxygen or air with different H...

Automatic H2O2 dosing / Dissolved oxygen / Injection of pure oxygen or air / Wastewater decontamination

Environmental impact assessment of a METRO infrastructure facility construction by modelling water and soil pollution

by

MARIA P. PAPADOPOULOU et al. View all

Environmental Management and Policies

The construction of large infrastructure projects such as highways, railroads, landfills, airports, harbours offers great social-economic opportunities for the development of a region; it is also mainly responsible for the deterioration of natural environment in the greater areas where these...

Environmental impact assessment soil and subsurface water map pollution +4 more

Using a market-type allocation system to confront water scarcity: an inter-district approach in Greece

by

Dionysis Latinopoulos et al. View all

Water Resources Management

This study examines the implication of a market-based system to allocate water regionally in one of the most intensively irrigated areas of Greece. The proposed approach combines elements from administrative allocation and tradable water rights in order to assess several water supply scenarios under...

regional water allocation collective decision making +3 more

Study of pretreatments for an enhaced bio-ethanol production from the organic fraction of municipal solid wastes

by

Francisco Jesus Fernandez Morales et al. View all

E2KW 2013

This study investigates the effect of different pre-treatments on the bio-ethanol production from the soluble compounds of the organic fraction of the municipal solid wastes (OFMSW). The experimental evaluation was performed on leachate samples obtained after mixing OFMSW with water during 10 d. The...

OFMSW Bio-energy +1 more

Simultaneous removal of estrogens and pathogens from secondary treated wastewater by solar photocatalytic treatment

by

Zacharias Frontistis et al. View all

Recently, the fate of emerging compounds in environmentally relevant samples has attracted considerable attention. Solar semiconductor photocatalysis may offer an appealing methodology to treat such contaminants. At the same time the use of solar photocatalysis for water and wastewater disinfection...

disinfection E. coli +5 more

Adsorption kinetics of Direct Black 38 on nitrogen-doped TiO2

by

Guilherme Luiz Dotto et al. View all

Water and Wastewater Treatment

In this work, three samples of nitrogen-doped TiO 2 prepared at different calcination temperatures (400, 450 and 500 °C) were applied for the adsorption of Direct Black 38. Kinetic studies about the adsorption of Direct Black 38 on nitrogen-doped TiO 2 were performed under different initial dye...

adsorption capacity colored effluents +2 more

Effect of soil scarification on natural regeneration of mature scots pine (Pinus sylvestris) stands in Greece

by

Grigoriadis Nikolaos et al. View all

Ecosystems and Natural Resources Management

The natural regeneration of Scots pine stands at the Sarakatsana location in the Pieria Mountains improved considerably after the removal of the dense ground vegetation followed mechanical soil scarification. The experimental design consisted of replications on scarified and non-scarified soil. The...

Regeneration Silviculture +3 more

Evaluation of several commercial polymers as support for TiO2 in photocatalytic applications

by

Fernando Gutiérrez-Martín et al. View all

This work is aimed to select the best synthetic polymers available in the market with high transmittance in the TiO 2 activation range that can be coated with the semiconductor and withstand the photocatalytic oxidation conditions. Among eleven commercial organic polymers with different additives...

Photocatalysis Polymeric substrates +2 more

Preliminary study of the effect of using biosorbents on the pollution of the treated water

by

Hossam Altaher et al. View all

Water and Wastewater Treatment

Several adsorbents have been tried out by researchers to remove different pollutants from wastewater. However, the adverse effect of these biosorbents on the treated water and the possibility of leaching new pollutants to the treated water have not been investigated. A batch technique was employed...

Adsorption Date Stones +5 more

Energy loss of protons and He2+ beams in plasmas

by

David.Casas2@alu.uclm.es et al. View all

E2KW 2013

In this work, the stopping power due to free and bound electrons in a plasma target is analyzed for two different kinds of projectile, protons and alpha particles. The stopping of free electrons is calculated using the dielectric formalism, well described in previous literature. In the case of bound...

Nuclear fusion plasma physics +3 more

The role of epoxidation on Camelina sativa biodiesel properties

by

Ángel Pérez et al. View all

E2KW 2013

An unstandarised biodiesel made from Camelina sativa oil, having over a 90 percent by weight of unsaturated fatty acids, were transformed into an epoxidised biodiesel that satisfy the requirements for iodine value, linolenic acid methyl ester content, cetane number, polyunsaturated fatty acids...

EN 14214 ASTM D 6751 +4 more

Airplane materials compatibility with blends of fossil kerosene Jet A1 with biokerosenes from babassu, palm kernel and coconut oils

by

David Bolonio Martín et al. View all

E2KW 2013

Currently there is a big interest to increase the sources of alternative fuels for aviation to get a reduction of their carbon footprint and the deep energetic dependence from fossil fuels of different countries. Although there are studies about how to produce this alternative fuel and if it...

Biokerosene compatibility +2 more

Effect of alternative fuels on diesel low temperature combustion

by

Juan José Hernández et al. View all

E2KW 2013

A set of experiments have been carried out in a heavy duty single cylinder engine using high EGR rates and different start of injection angles ( SOI). Three different fuels (conventional diesel fuel, a diesel-ethanol mixture (e-diesel) and a Fischer-Tropsch fuel (GTL)) have been tested in order to...

Alternative diesel fuels Low Temperature Combustion +1 more

Sustainability study of biodiesel from Acrocomia totai

by

Magin Lapuerta et al. View all

E2KW 2013

The aim of this work is to quantify the life-cycle emissions in terms of CO 2 equivalent grams per megajoule of biodiesel produced from Acrocomia totai, a native oily seed from Paraguay, according to Directive 2009/28/EC. The other key point is to calculate the amount of energy invested to get a...

Life cycle analysis Greenhouse emissions +2 more

Mediterranean species for hedges in solar photovoltaic farms: A four-year study.

by

Caridad Pérez-de-los-Reyes et al. View all

E2KW 2013

In an effort to reduce the environmental impact on the landscape caused by the installation of photovoltaic farms, Spanish legislation requires the establishment of a hedge on the perimeter of each plot. The objective of the work described here was to increase our knowledge of the hedge species that...

Survival percentage apical growth +3 more

Prediction of adsorption efficiency for the removal malachite green and acid blue 161 dyes by marble sludge dust using ANN

by

semra çoruh et al. View all

Water and Wastewater Treatment

In the present study, batch adsorption studies were performed for the removal of malachite green and acid blue 161 dyes from aqueous solutions by varying parameters such as contact time, waste marble dust amount, initial dye concentration and temperature. The equilibrium adsorption data were...

Marble sludge dust Adsorption +3 more

Electrochemical desalination of nacl solutions by electrosorption on nano-porous carbon aerogel electrodes

by

K. Dermentzis et al. View all

General

The objective of this study is to elucidate the efficiency of electrosorption on desalination of aqueous NaClsolution using nano-structured carbon aerogel electrodes. The experiments were performed in an electrosorption cell consisting of a pair of carbon aerogel sheets separated by a 0.5cm spacer...

Electrochemical desalination electrosorption - electrodesorption +1 more

The effect of humic acids on the removal of atrazine from water in a continuous photocatalytic membrane reactor

by

Karabelas A.J. et al. View all

Advanced Oxidation Processes

This paper examines the effect of humic acids (HA) and other solution constituents (Ca 2+, Mg 2+, Na +), frequently encountered in potable water sources, on the removal of a well-known herbicide, atrazine (ATR), by a laboratory-scale pilot Photocatalytic Membrane Reactor (PMR) system. Experimental...

AOPs Atrazine +3 more

Sensitivity analysis of Penman evaporation method

by

Nikos Mamassis et al. View all

Hydrology and water resources

In this paper the influence of key meteorological variables in Penman evaporation method was explored. Monthly data over a 16-years period (1993-2008)were used from Thissio-Athens meteorological station. The climatic parameters of surface air temperature, relative humidity, wind speed and sunshine...

Evaporation Penman method +2 more

A novel approach to fault detection and diagnosis on wind turbines

by

Raúl Ruiz de la Hermosa González-Carrato et al. View all

E2KW 2013

The structure of the wind turbines nowadays is a critical element due to their importance from the reliability, availability, safety, and cost points of view. This is more relevant when the offshore wind turbine is considered. This paper introduces a novel design of a Fault Detection and Diagnosis...

Signal processing transfer function +5 more

Electric vehicles and traffic related pollution reduction: a simulation model for Hamilton, Ontario, Canada

by

Yorgos N. Photis et al. View all

Air Quality

This paper analyzes the potential contribution of electric vehicles in greenhouse gas (GHG) emissions reduction over the next decade following a simulation procedure. Emissions were assessed through a stepwise methodological approach at the transportation link level in the Hamilton Census...

Electric mobility electric vehicles +4 more

Bayesian model of urban water safety management

by

BARBARA TCHÓRZEWSKA-CIEŚLAK, cbarbara@prz.edu.pl et al. View all

Water Resources Management

Water supply system is a critical infrastructure. Main task of urban water system is to provide consumers with drinking water in adequate quantity, at the required quality and pressure corresponding to current standards. For the purposes of this paper, operational reliability of the water supply...

water supply systems risk analysis +1 more

Removal of 2,4-dichlorophenol by simultaneous adsorption and biodegradation (SAB) using low cost adsorbents

by

ULLHYAN A. et al. View all

Pollution Control Technology

This study was aimed to investigate the use of Mustard stalk as a cheap, eco-friendly adsorbent with support matrix for the immobilization of microbial cell and for subsequent removal of 2,4-dichlrophenol(2,4-DCP) from waste water. A comparative batch study between adsorption as well as simultaneous...

2 4-dichlorophenol +5 more

Removal of Mn(II) and Fe(II) by Aspergillus Sp. TU-GM14 immobilized on Detarium Microcarpum matrix

by

Omeike, Sunday O. et al. View all

Water and Wastewater Treatment

Removal of Fe(II) and Mn(II) ions from aqueous solution by fungal biosorbent Aspergillus sp. TU-GM14immobilized on Detarium microcarpum matrix was investigated in this study. Effects of biosorption parameters pH, biosorbent concentration, bead size and equilibrium time on Fe(II) and Mn(II) ions...

Biosorption II +7 more

Water level prediction by artificial neural network in a flashy transboundary river of Bangladesh

by

ROBIN K. BISWAS et al. View all

Water Resources Management

This paper presents the sensitivity analysis results of feed forward multilayer perceptron based Artificial Neural Network model for water level prediction in a data constraint transnational Surma River of Bangladesh. Catchment characteristics, hydro-geomorphological, meteorological and headwater...

Flood Forecasting Stochastic Hydrological Modelling +4 more

Relationship between rainfall and run-off In the Stratoni Region (N. Greece) after the storm of 10th February 2010

by

Dr Marios Sapountzis et al. View all

Water Resources Management

Extreme floods often demonstrate unanticipated characteristics that pose problems for management and response. The flood in the Stratoni region in February 2010 provided an example of such unexpected response. The aim of this paper is the quantification of the hydrologic response of the torrents...

flood discharge hydrograph +1 more

Carbonaceous particles emitted from cooking activities in Portugal

by

Célia Alves et al. View all

Air Quality

PM 2.5 samples were collected from the exhaust stacks on the roofs of a university canteen, a charcoal-grilled chicken restaurant and a wood-oven roasted piglet restaurant. The use of thick exhaust hood filters and also gas and electricity as energy sources for cooking in the kitchen of the...

Portugal Cooking Emissions +3 more

Hollow fiber membrane contactor absorption of CO2 from the flue gas: Review and perspective

by

Y. F. Yan et al. View all

Global Environmental Change

With the aggravation of the unprecedented greenhouse effect, the reduction of greenhouse gases which mainly consist of CO 2 has caught high attention by global scholars. The membrane absorption of CO 2 from the flue gas seems a promising alternative to conventional absorption methods like chemical...

CO2 capture Membrane absorption +3 more

Optimization in oil slick combating stations allocation. Application to the Sea of Azov

by

Antigoni Zafirakou et al. View all

Pollution Control Technology

A method is presented and preliminarily applied to the optimization of the allocation of oil-slick combating coastal stations in a coastal basin. The decision support methodology is based on the annual simulation of the circulation in the basin according to climatologic data, on the oil spill...

Oil slick combating stations +2 more

Effect of oxidants in the photocatalytic degradation of DEET under simulated solar irradiation in aqueous TiO2 suspensions

by

Ioannis Konstantinou et al. View all

Advanced Oxidation Processes

Recently, considerable efforts have been devoted to overcome a major limitation in semiconductor photocatalysis, the recombination of photogenerated e --h + pairs which leads to reduced quantum yields. Considering the impacts of various parameters on the photocatalytic degradation efficiency, our...

DEET degradation TiO2 photocatalysis +4 more

Electrochemical Decolorization and Removal of Indigo Carmine Textile Dye from Wastewater

by

Stergiopoulos D. et al. View all

Advanced Oxidation Processes

The present paper discusses an integrated electrochemical decolorization/degradation treatment procedure of indigo carmine dye, which comprises electrocoagulation, electrooxidation and advanced electrochemical oxidation using the electro-Fenton process. The electrocoagulation process is performed by...

Dye house effluents electrochemical coagulation +3 more

Textile wastewater conductivity control of electrocoagulation process using MATLAB/ SIMULINK

by

Demirci Y. et al. View all

Water and Wastewater Treatment

This paper presents an experimental application of PID control to study the electrocoagulation process of textile wastewater. The addition of NaCl solution would also lead to the decrease in power consumption because of the increase in conductivity. Conductivity in electrocoagulation process is...

Electrocoagulation Conductivity Control +2 more

Nanocrystalline TiO2 and Halloysite clay mineral composite films prepared by sol-gel method: Synergistic effect and the case of silver modification to the photocatalytic degradation of Basic Blue- 41 azo dye in water.

by

Elias STATHATOS et al. View all

Advanced Oxidation Processes

Tubular halloysite clay mineral and nanocrystalline TiO 2 were incorporated in the preparation of nanocomposite films on glass substrates via sol-gel method at 450ºC. The synthesis involves a simple chemical method employing nonionic surfactant molecule as pore directing agent along with the acetic...

Titanium dioxide nanocrystalline +5 more

Influence of coal properties on the co-combustion characteristics of low-grade coal and city mud

by

Yan Y.F. et al. View all

General

In this paper, the effects of the mixing ratio and particle size of coal were investigated using a thermogravimetric analysis (TGA). A method of Achar-Brindley-Sharp-Wendworth (ABSW) was applied to a simultaneous calculation of the kinetic parameters (including the apparent activation energy, the...

thermogravimetric analysis mixture ratio +3 more

Optimization of malachite green dye removal by sepiolite clay using a central composite design

by

Semra Çoruh et al. View all

Water and Wastewater Treatment

In this study, a four-factor five-level Central Composite Design (CCD) was applied to develop mathematical model and optimize process parameters for malachite green dye (MG) removal from aqueous solutions using sepiolite. The individual, combined, and quadratic effects of four experimental factors...

Adsorption Central composite design +3 more

Effects of climate change on future extreme rainfall indices over Thailand

by

Maijandee S. et al. View all

Global Environmental Change

Extreme rainfall indices were calculated based on daily rainfall data derived from the outputs of MM5-RCM simulations. Projected changes of these indices in the future (2020s) under the IPCC Special Report on Emissions Scenarios (SRES) A1B compared to the reference period (1990s) were analyzed...

extreme rainfall projected climate change +2 more

Spatialised agricultural nitrogen balance of Veneto region, Northern Italy: sources identification, assessment and policy relevance

by

Pulighe G. et al. View all

Ecosystems and Natural Resources Management

The aim of this study is to deepening knowledge on the agricultural nitrogen cycle within the Veneto region (Northern Italy) by computing the Gross Nitrogen Balance (GNB) with highly geographical resolution. Spatialised maps of nitrogen input and output, created using the most detailed information...

Gross Nitrogen Balance Agro-environmental Land Units +3 more

Hydrothermal synthesis of iron oxide photo-Fenton catalysts: the effect of parameters on morphology, particle size and catalytic efficiency

by

Adrián M.T. Silva et al. View all

Advanced Oxidation Processes

Iron oxide materials were synthesized by an easy and rapid hydrothermal method using different iron precursors (FeCl 3∙6H 2O, Fe(NO 3) 3∙9H 2O and K 4Fe(CN) 6∙3H 2O), solution pHs (acid and basic) and reaction times (3 h and 6 h). The synthesized materials were thoroughly characterized by...

iron oxide hydrothermal method +3 more

Environmental Dynamics and Engineered Systems for the Degradation of Trichloroethylene: A Critical Review

by

Dr. Amin M. T., Ph.D. P.E. Asst. Professor et al. View all

General

Trichloroethylene (TCE) is found in all mediums of environment in varying concentrations. Over the past 25 years, many engineered systems have been devised for its complete and sustainable degradation. This study reviews the environmental factors that influence the TCE pollution in environment and...

Biodegradation engineered systems +4 more

Kinetic study on the removal of mercury by fly ash

by

V.K.Verma et al. View all

Water and Wastewater Treatment

The removal of mercury by adsorption process using fly ash was investigated in this study. Mercury removal capacity of fly ash was performed by batch mode adsorption experiment with the effect of various parameters i.e., contact time (0.5-3.5) h, pH of 2-10, concentration of adsorbate (1, 5 and 10)...

Adsorption fly ash +4 more

Stabilization pond systems for wastewater treatment: Facility costs and environmental footprint assessment

by

Vassilios A. Tsihrintzis et al. View all

Water and Wastewater Treatment

Natural systems offer an economic solution for the treatment of wastewater from small settlements. This study presents a detailed technical analysis of three stabilization pond systems designed to treat municipal wastewater, varying in capacity from 250 to 1400 population equivalent. Construction...

Municipal wastewater treatment Natural treatment systems +5 more

TiO2 photocatalytic degradation of caffeine and ecotoxicological assessment of oxidation by-products

by

Giusy Lofrano et al. View all

Advanced Oxidation Processes

The photocatalytic degradation of caffeine has been investigated in aqueous suspensions of titanium dioxide (TiO 2) by monitoring process efficiency at varying TiO 2 (25 - 175 mg l -1) and initial drug concentrations (0.5 - 9.5 mg l -1). The use of the response surface methodology (RSM) allowed to...

caffeine Daphnia magna +3 more

Wastewater disinfection by solar heterogeneous photocatalysis: effect on tetracycline resistant/sensitive Enterococcus strains

by

Luigi Rizzo et al. View all

Advanced Oxidation Processes

Solar simulated heterogeneous photocatalysis (SSHP) with suspended TiO 2 was investigated in the inactivation of tetracycline resistant/sensitive Enterococcus (TRE/TSE) strains in the effluent of an urban wastewater treatment plant (UWTP). The effect of solar simulated disinfection (SSD) on the...

Advanced oxidation processes antibiotic resistant bacteria +3 more

Modelling micropollutant removal by solar photo-Fenton

by

José Antonio Sánchez Pérez et al. View all

Advanced Oxidation Processes

This paper is focused on modelling the degradation of micropollutants by solar photo-Fenton at pilot plan scale. To this aim, a three pesticide mixture (acetamiprid, thiabendazole and imazalil, 100 μg l -1 each) was treated by photo-Fenton in simulated secondary effluent. The model covered a wide...

acetamiprid thiabendazole +5 more

Feasibility Evaluation of a Biodiesel Plant fed by Recycled Edible Oils Comparing two Alternative Production Technologies

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Dimitrios Georgakellos et al. View all

E2KW 2013

The present work is about the techno-economic evaluation of a biodiesel industrial unit that exclusively use recycled edible oils as feedstock, for two alternative production technologies. Nowadays, many biodiesel production units use a mixture of virgin vegetable oils and waste cooking oils. The...

Biodiesel Waste Cooking Oil +2 more

Time Series Modelling of Pan Evaporation-A Case Study in the Northeast India

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Dr Deepak Jhajharia et al. View all

Hydrology and water resources

In the present study, a monthly time series model was developed for pan evaporation (E pan) in Jorhat (Assam), northeast India. We assume that the E pan series can be decomposed into deterministic and stochastic components, and a turning point test was used to identify the presence of a trend...

Pan Evaporation Stochastic modelling +3 more

Gas monitoring methodology and application to CCS projects as defined by atmospheric and remote sensing survey in the natural analogue of Campo de Calatrava

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Rincones M. et al. View all

General

CO 2 capture and storage (CCS) projects are presently developed to reduce the emission of anthropogenic CO 2 into the atmosphere. CCS technologies are expected to account for the 20% of the CO 2 reduction by 2050. Geophysical, ground deformation and geochemical monitoring have been carried out to...

monitoring CO2 capture and storage +3 more

Lower Douro River basin (Portugal) water quality – Focus on trace element changes and anthropogenic sources of contamination

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Agostinho A. Almeida et al. View all

Water Quality

The Douro River lower basin water quality was studied regarding its concentration on 18 trace elements (Be, Al, Cr, Mn, Co, Ni, Cu, Zn, As, Se, Mo, Ag, Cd, Sb, Ba, Tl, Pb and U, measured by ICP-MS). Other physicochemical parameters, such as pH, conductivity, dissolved oxygen and water temperature...

Douro River lower basin Trace Elements +4 more

Essential oil composition and antimicrobial investigation of some Iranian herbal plants on Pectobacterium carotovorum

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Shahin Gavanji et al. View all

General

In recent years, there has been growing concern regarding undesirable side effects of synthetic antimicrobial drugs used for food preservation or in medicine and an explosive global spreading of multidrug resistant microbes are considered as a substantial global health threat. This necessitates the...

Pectobacterium carotovorum essential oil +1 more

Soil mapping to assess workability in central Italy as climate change adaptation technique

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Bergonzoli S. et al. View all

Ecosystems and Natural Resources Management

In this paper soil conventional tillage (CT) in two adiacent on-farm sites, hilly and plain fields, was carried out in comparison with direct-seeding + fertilizing at very low water content. The quality and quantity of work were evaluated through machine performance, fossil-fuel energy requirements...

soil mapping GPS +5 more

A handy irrigation management method through meteorological data. Case study in N. Greece

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George Arampatzis et al. View all

Water Resources Management

Crop irrigation, especially in irrigation networks, often consumes larger quantities of irrigation water than necessary since most of the times irrigation is carried out empirically and not based on actual crop requirements. The aim of this work is the management of irrigation water though the use...

crop water requirements Meteorological data +2 more

Application of a continuous Rainfall-Runoff model to the basin of Kosynthos river using the hydrological software HEC-HMS

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Konstantinos Kaffas et al. View all

Water Resources Management

In this paper, the application of a continuous rainfall-runoff model to the basin of Kosynthos River (district of Xanthi, Thrace, northeastern Greece), as well as the comparison of the computational runoff results with field discharge measurements are presented. The rainfall losses are estimated by...

Continuous rainfall-runoff model Kosynthos River +3 more

Estimation and comparison of potential evapotranspiration based on daily and monthly data from Sperchios valley in Central Greece

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Spyridon Paparizos et al. View all

General

There is no golden rule concerning the optimal equations to estimate reference potential evapotranspiration (PETref) under various climates because even in the same climatic type, different studies have produced mixed results in relation to the performance of the empirical PETref equations...

PET EmPEst +3 more

Experimental study of the mechanical and thermal behaviour of pellets produced from oil palm biomass blends

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Sonia Rincón et al. View all

Solid Waste Management

The production of bio-pellets is an alternative to add value to the residual biomass of the oil palm-extraction process. In this work, an experimental study of the pelletising process of oil palm residual biomass blends is presented. An experimental full factorial design that uses as factors the...

Biomass pellets oil palm biomass +2 more

An Empirical Decomposition of Deep Groundwater Time Series and Possible Link to Climate Variability

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Uma Seeboonruang et al. View all

Water Resources Management

Deep groundwater data reflects hydrological processes, climate change and variability, as well as any anthropogenic influence. Decomposition of deep groundwater signal examines the history of the groundwater region. Detrending is a vital step in decomposition of groundwater time series because it is...

Climate variability Correlation +4 more

Comparison of methylene blue adsorption from aqueous solution using spent tea dust and raw coir pith

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R. Gandhimathi et al. View all

Pollution Control Technology

The purpose of the present work is to test the possibility of using the spent tea dust and raw coir pith for the removal of methylene blue (MB) from aqueous solution. The effects of the contact time, adsorbent dosage and solution pH were studied in batch experiments at 27 °C. Results showed that a...

Adsorption isotherm +4 more

Biosorption of manganese (II) and aluminium (III) ions from aqueous solution by immobilized Trichoderma asperellum BHU216

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S.O. Kareem et al. View all

Water Quality

Removal of Al 3+ and Mn 2+ from solution by Trichoderma asperellum BHU216 immobilized on Irvingia gabonensis matrix in a batch system was investigated. Effect of biosorption conditions contact time, pH, bead size and spore load were studied. Equilibrium isotherms and re-usability of biosorbent were...

II Manganese +6 more

Perceived benefits of selected wetlands in South-West Nigeria

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Olarewaju T.O. et al. View all

General

Poor appreciation of Wetlands has been linked to their massive destruction in Nigeria. This results in a considerable loss of benefits on income generation, food security and environment sustainability. This study assesses people’s perception of benefits from selected Wetlands in South West, Nigeria...

Likert scale Perceived Benefit Index +1 more

Impact of human activities and infrastructure works on hydro morphological characteristics of Alfeios River, Greece

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Yannopoulos P.C. et al. View all

General

The Alfeios River is the greatest in length and flow-rate river in Peloponnisos and constitutes an important water resource and ecosystem of Western Greece. A number of infrastructure works and human activities have been constructed and are operating in Alfeios River Basin, while in the past...

Water quality riverbed changes +2 more

Using inverse modeling to estimate parameter values for three dimensional transport of contaminants in Lake Ontario

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Tsanis I.K. et al. View all

General

The Great Lakes form an important freshwater drinking source for many urban areas surrounding the Lakes but also provide a sink for pollutants and runoff. Consequently introducing new drinking water intakes into any of these water bodies requires investigation into local pollutant sources and their...

3D transport model drinking water intakes +2 more

A simple water quality model as a tool for the evaluation of alternative river basin management plans

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Noutsopoulos C. et al. View all

Water Quality

A key component in the implementation of Water Framework Directive is the development of a river basin management plan for each river basin district. Water quality models are important tools to test the effectiveness of alternative management plans on the water quality of the respective water bodies...

Deoxygenation Evrotas River +5 more

Systematic Approach for the selection of monitoring technologies in CO2 geological storage projects. Application of multicriteria decision making

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Llamas B. et al. View all

General

Geologic storage of carbon dioxide (CO2) has been proposed as a viable means for reducing anthropogenic CO2 emissions. Once injection begins, a program for measurement, monitoring, and verification (MMV) of CO2 distribution is required in order to: a) research key features, effects and processes...

CO2 geological storage monitoring +3 more

Quantification of climate-tourism potential for Athens, Greece – Recent and future climate simulations

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Panagiotis Nastos et al. View all

Global Environmental Change

The aim of this paper is to present in a useful and understandable way how climatic change could be interpreted for tourism and recreation. Future climate change conditions are analyzed using the Climate Version of the Local Model (CLM) based on the COSMO model, which is currently used – among other...

CLM Climate and Tourism +3 more

A Hybrid Stochastic-ANN Approach for Flow Partitioning in the Okavango Delta of Botswana

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Piet K. Kenabatho et al. View all

Water Resources Management

Since a spectrum of hydrological and geomorphological conditions produce flood pulse environment in a riverine or a deltaic system, it is essential to have the knowledge on spatial and temporal distributions of river flow and dependent processes for environmental flow requirements, ecosystem...

Artificial Neural Network Autoregressive Integrated Moving Average +2 more

Methodologies for compiling national inventories of contaminated sites and conducting preliminary site screening

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Pantazidou Marina et al. View all

General

Procedures for compiling a national inventory of contaminated sites must take into account the technical state-of-the-art in the area of subsurface contamination and restoration, the national and supranational regulatory environment, as well as the national administrative infrastructure. Within this...

Contaminated land Subsurface polluting activities +2 more

Site specific agricultural soil management with the use of new technologies

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Miltiadis Iatrou et al. View all

Ecosystems and Natural Resources Management

The Soil Science Institute of Thessaloniki produces new digitized Soil Maps that provide a useful electronic database for the spatial representation of the soil variation within a region, based on in situ soil sampling, laboratory analyses, GIS techniques and plant nutrition mathematical models...

soil map new technologies +2 more

Pollution of Nitrates - Contaminant transport in heterogeneous porous media: a case study of the coastal aquifer of Corinth, Greece

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George P. Karatzas et al. View all

Water Resources Management

The coastal plain of Corinth, known also as Vocha plain is one of the fast-growing rural areas due to its relatively short distance from Athens. In conjunction with the fast development, water use has also increased. On a large part of the Plain area, irrigated agriculture is practiced and...

Recent and future trends of beach zone evolution in relation to its physical characteristics: The case of the Almiros Bay (Island of Crete, south Aegean Sea)

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spetrakis@geol.uoa.gr et al. View all

General

The present study investigates recent and future evolution of the beach zone of Almiros Bay, one of the most touristic developed beaches of north Crete, in relation to its morphodynamic setting and the anticipated sea level rise. The beach zone is exposed to northerly winds, with maximum wave...

shoreline retreat N. Crete +3 more